41.Existence of hot deserts on earth is because of

42.Given below are two statements labelled as Assertion (A) and Reason (R). In the context of the two statements, which of the following is correct ?Assertion (A) : Winds are deflected to their right in Northern Hemisphere.Reason (R) : Rotation of earth causes the changes in the wind direction.

43.Which of the following set of countries were merged to from U.A.R. ?

44.The Thein dam is built on

45.Canal irrigation is largely practised in